AKG K52 Closed Back Headphones

This is what AKG say about the K52 Headphones:

Style, comfort, and clarity

Hear every detail of your music with the AKG K52 over-ear closed-back headphones. Equipped with professional 40 mm drivers, they capture even the finest nuances, ensuring your mixes translate accurately across any system. From monitoring vocals to tracking bass lines, the lightweight design and self-adjusting headband provide long-lasting comfort during extended sessions. Built by the brand behind some of the world’s most iconic recordings, the durable K52 delivers reliable, high-quality sound wherever your music takes you.

• Precisely balanced response provides reference-monitor accuracy
• Large 40mm drivers for wide 18Hz - 20kHz frequency response
• Self-adjusting headband ensures perfect fit
• Over-ear design and lightweight construction provide exceptional comfort
• Closed-back design maximizes isolation
• 2.5m (8.2') cable
• 3.5mm (1/8") plug with 6.3mm (1/4") screw-on adapter